import java.util.Scanner;

public class demo02 {
    //凯撒加密
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        String str=sc.nextLine();
        char[] arr=new char[27];
        for (int i = 1; i < 27; i++) {
            arr[i]=(char)('a'+i-1);
        }
        char[] arr1=str.toCharArray();
        for (int i = 0; i < str.length(); i++) {
            arr1[i]=arr[(arr1[i]-'a'+1+3)%26];
        }
        for (int i = 0; i < arr1.length; i++) {
            System.out.print(arr1[i]);
        }
    }
}
